Home / 19,720.04-27,216.27-12,550.68

Finding the Fourth Proportional to 19,720.04, 27,216.27 and 12,550.68

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Solution

The fourth proportional to 19,720.04, 27,216.27 and 12,550.68 is: 17,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.04 : 27,216.27 = 12,550.68 : x
  2. Step 2: Convert to fraction form
    19,720.04/27,216.27 = 12,550.68/x
  3. Step 3: Cross multiply
    19,720.04x = 27,216.27 × 12,550.68
  4. Step 4: Simplify right side
    19,720.04x = 341,582,695.56
  5. Step 5: Solve for x
    x = 341,582,695.56/19,720.04
  6. Step 6: Final answer
    x = 17,321.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.